Resume / frontend

Henry Li

Senior Frontend Engineer

Staff Frontend Engineer and boutique software studio co-owner with 5+ years building high-traffic web and mobile products across consulting, logistics, real-time platforms, and cross-platform apps. Delivered React, Next.js, Vue, Angular, Svelte, and Flutter interfaces for products serving 3,000+ concurrent users and supporting $50k+/month in in-app revenue. Strong in performance, accessibility, design systems, and frontend ownership from product direction through release.

3,000+

concurrent users

60 FPS

mobile performance

$50k+

monthly in-app revenue

2d

release lead time from 2 weeks

capability map

Core Web & Languages

TypeScriptJavaScriptHTML5CSS3Sass/SCSSWebSocketsDOM ManipulationGit

Frameworks & Libraries

React.jsNext.jsVue.jsAngularSvelteSvelteKitFlutterReduxTailwind CSSStyled ComponentsViteWebpack

UI/UX & Performance

Responsive Web DesignWeb AccessibilityDesign SystemsCore Web VitalsCross-Browser CompatibilityMobile-FirstSEO

Testing & Backend Context

JestCypressReact Testing LibraryNode.jsREST APIsGraphQLAWSDockerCI/CD

delivery timeline

Staff Software Engineer

Horizon Technologies Advertisement

Jul 2025 - Present

SvelteKitReactNext.jsFlutterTypeScriptResponsive UI
  • Co-own a boutique software studio and lead product UI implementation for client web and mobile apps, turning ambiguous product ideas into polished prototypes and production interfaces.
  • Built responsive design systems and reusable component patterns across SvelteKit, React, Next.js, and mobile projects to keep small teams shipping consistent experiences.
  • Own client-facing demos, feedback loops, and release polish, aligning engineering decisions with usability, conversion, and maintainability goals.

Application Engineer

Arrow Electronics

Jun 2024 - Jun 2025

ReactJavaSpring BootOracle PL/SQLKubernetes
  • Owned React-based warehouse workflows for a cloud logistics platform handling 1M+ daily transactions in a high-availability environment.
  • Worked across frontend flows and service integrations as Oracle PL/SQL workflows moved into event-driven Java and Spring services.
  • Improved release delivery through CI/CD and Kubernetes workflows, cutting lead time from 2 weeks to 2 days.

Senior Software Engineer

Amtran International

Oct 2022 - Apr 2024

Next.jsNode.jsPostgreSQLReal-time indexing
  • Led frontend delivery for a Next.js platform with real-time data indexing, serving 3,000+ concurrent users with sub-second page loads.
  • Optimized rendering, data loading, and performance-sensitive user flows to sustain sub-second page loads in a high-traffic application.
  • Established static analysis and fuzz testing practices that supported zero critical findings across two external audits.

System Analyst

Ace Technologies Limited

Apr 2022 - Sep 2022

FlutterNode.jsAstroAWS
  • Built a cross-platform Flutter app that maintained 60 FPS in core flows on lower-end devices and supported $50k+/month in in-app revenue.
  • Introduced RFC-driven development and onboarding documentation that reduced new-hire ramp-up time by 50%.

Analyst Programmer

Global Logistics System (HK) Limited

Nov 2021 - Apr 2022

Angular.NETVueAWS
  • Built and maintained Angular and Vue logistics workflows connected to a platform processing terabytes of freight data under 24/7 availability requirements.
  • Delivered the Cathay Pacific Fly Greener carbon offset portal, supporting a 3x increase in corporate participation after launch.

Web Developer

MADTec Solutions Limited

Jan 2021 - Aug 2021

ReactVueDockerAlibaba CloudPython
  • Delivered secure React and Vue applications for government and financial clients that passed penetration testing requirements.
  • Supported a zero-downtime cloud migration to Alibaba Cloud that maintained 99.9% service levels and reduced hosting costs by 35%.

additional information

Languages

English (Fluent), Cantonese (Native), Mandarin (Proficient)

Education

BA Economics, The University of Manchester